Interlocking sinker and web-holder.



F. -WlLCOMB. (NTERLOCKING SINKER AND WEB HOLDER. APPLICATION FILED AUG-H.19I6. RENEWED JULY 11. 1917.

Patentd Feb. 5,191&

' 2 SHEETS-SHEETI [tn/wen for:

F, WILCOMB. INTERLOCKiNG SINKER AND WEB HOLDER. APPLICATION FILED AUG. l4, I916. RENEWED JULY H. 1917. Lfii fifififl. Patented Feb.5,1$)18.

2 SHEETS-SHEET 2- FRANK WILCOMB, F NORRISTOWN, PENNSYLVANIA, ASSIGNOR 'IO WILDMAN MFG. 00., OF NORRISTOWN, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

INTERLOCKING SINKER AND WEB-HOLDER.

specification of Letters Patent.

Patented Feb. 5, 1918.

Application filed August 14, 1916, serial No. 114,804. Renewed July 11, 1917. Serial No. 180,018.

- To all whom it may concern:

Be it known that l, FRANK l/VILCOMB, a citizen of the United States, and a resident of Norristown, Pennsylvania, have invented certain new and useful Improvements in Interlocking Sinker-s and Web-Holders, of which the following is a specification.

. The invention relates to knitting machines of the type employing sinkers and webholders. The main feature of the invention consists in a combined sinker and webholder in which, while separate elements or units are employed, one constituting the sinker and the other constituting the web holder, these two elements are operable in one bed, or in one slot, one of said elements efiecting the operation of the other of said elements, as will be hereinafter described and particularly pointed out in the claims. The invention is shown in the accompanying drawings in which Figure 1 shows a transverse sectional view of part of a needle carrier and a sinker and web-holder bed, with the sinker-s and webholder combination in position to supply yarn to the needle.

Fig. 2 is a view like Fig. l, but with the sinkers advanced and the web-holder also in advanced position.

Fig. 3 is a similar view showing the parts in the position as assumed by them during the pressing action.

Fig. 4 shows a dilferent position of the parts, the sinker having shed the new loop and these new loops being in the act of evening across the tops of the web-holdersf Fig. 5 shows the position of the parts similar to Fig. 1, excepting that here the needle-has drawn its loop into the fabric.

Fig. 6 shows the sinker and web-holder slightly advanced from the position as in Fig. 5, and that the needle is about to rise, while the fabric is held down by the web holder.

Fig. 7 shows a different relation of presser wheel. p

, Figs. 7 and 7* illustrate details of Fig. 7.

Fig. 7 shows views of one form of web holder detached.

Fig. 8 illustrates a combination of pivotally mounted sinkers and the form and arrangement of web holders to cooperate therewith.

Fig. 9 illustrates certain parts of the beds to receive the knitting elements, needles, web holders and sinkers.

grooves, as in ordinary practice, for the guidance of the needle. 2 indicates a web holder of substantially ordinary form, so far as its upper and lower surfaces and its nose are concerned, and 3 indicates a sinker having a nose of substantially ordinary form. Both the web holder and the sinker are mounted in the same bed, and each web holder is mounted in the same slot of the said bed,

with its companion sinker. The sinker is operated by a suitable cam, engaging its butt 4:, said cam being represented in sec tion at 5, this cam being mounted on the under side of a suitable cap plate. The sinker at its outer end, which carries the butt, is in a lower plane than the innelaend where the nose is located; and the said outer portion of the sinker has full guiding connection, or engagement, with the slot in which the sinker slides. The inner portion of the sinker, where it engages the outer end of the web holder, has shoulders at 6 and 7. These shoulders are located at a greater distance apart than the width of the tail, or outer porticn, 8 of the web holder, so that movement of one element can take place to a certain extent in relation to the other element as hereinafter indicated. The web holder is under pressure of a spring band 9,

toward the needles, into position to perform their web holding functions. When the sinkers are retracted, however, to the position shown in Fig. l, the shoulder at 7 on the sinker will engage the upstanding tail portion of the web holder, and will retract the same to the position indicated in said Fig. 1, it being understood that the sinker is operated solely by its cam. In the position of the parts shown in Fig. 1, the sinker and web holder are retracted to their extreme limit to allow the yarn to be presented to the Sinker in front of the nose thereof, and as just stated, this extreme retracted position. of the web holder unit is due to the action of the sinker in engaging it and retracting it positively against the with Fig.

\ sinker is advanced to sink the needles thereof, the spring 9 causes the the shoulder 6 vmovement was that indicated in tension of the spring band 9. When the the loops between web holder to follow up the advancing movement of the sinker until the nose of the web holder comes against the fabric, and then of the sinker comes against the tail portion of the Web holder and holds it in this advanced position, Fig. 2, or causes it to advance a short distance farther, in case of a Web holder not advancing freely under the influence of the spring band. 'lhisview also illustrates a presser device outside the needle row at 11', and formin part of the wall of the sinker bed. This resser is in such position that as a needle passes upward, or downward, by this Wall provided the needle is forced outwardly by a presser wheel or other prcsser device inside the needle row, and indicated at 12 in Fig.

In Fig. 2 both the sinker and Web holders are fully advanced, but in Fig. 3, which rep resents the position of the pressing of the needle beard the sinker is slightly retracted to relieve the yarn from excessive strain across the stem of the needle, and the Web holder is in its advanced position holding the fabric loops in definite position to aid the needle boards in passing through them, as they are pressed. .This View shows that the needle beard is pressed at a point between the new yarn and the old fabric loop preparatory to the further downward movement of the needle. Fig. 4 shows the sinker retracted to shed the new loop and in its retracting movement the sinker has withdrawnthe Web holder slightly'to permit the needle heard to pass through the fabric loop without bursting it and furthermore, the Web holder is in po sition to allow of evening of the loops across the tops of the web holder nibs.

Fig. 5 shows the sinker still further retracted and the Web holder is also retracted and has shed its evened loop which now has been drawn into the fabric.

ll 6 shows the sinker slightly advan ed from the position of hi 5 pcrmittin Ztfifl'li} web holder ta -advance and seize the to pri it from rising when the needle rises to eivethe new yarn, the elevate position ie needle at this time being indicated by dotted lines.

The above described series of steps and movements may now be repeated, starting- 1, which in respect to Fig. 6 just described, shows the sinker and web holder retracted .to an extreme position, and While this is not the necessary movement over that in Fig. 6, it provides for a thread carrier, or

thread delivery eye, positioned in front of I the sinker instead oi above it,

h would be required if the extreme out Fig. 6.

it is pressed parts during the the loops prior to .and knocln'ng' the loops rd limit of The mode of sinking the yarn, pressing the needle beards, and evening the loops prior to drawing them into the fabric, and drawing the stitches into the fabric, does not difi'er materially in the use of this double implement with its. units in the one groove, over the usual form, of sinker and web holder arrangement in which two scymratc instruments are employed, supported in independent beds or carriers and independently operated and it is not the purpose of this inventi" to depart from the accepted mode of handling the yarn and the formation of the stitches. I have provided, however, a simpler construction and mountingof the parts, and a mode of handling thi notch and a web holder throat, in which the sinking action and web holding action are necessarily performed simultaneously, whereas the operations should. be distinct from one another. With the double-nosed sinker arrangement just mentioned, evening drawing them into the fabric cannot be done.

This evening action r skilled in the art, essential step in once" of sinker knitting. possible to obtain Wliil piece implement is the new loops d or.- loops, but this ices not coinplish the Obifi'ft aimed at, such as can be c by evening; the loops prior to drawing 1 win imo the l The foregoingdescrip on of the went, so far as sinking the yarn, L the needle beard, evenm over the BL concerned, do not differ in subs that shown in my Patent No. teinber 16, 1913. it wi l h abovc, however, that i compound iinpl z needle bed and of units constite ment; that the m i ed for ceiain I but that all the .pairollcd, either directly. or ii iron: a single coin set acting upon one of the units.

The invention is not limited in its use to spring beard needles.

Referring to Fig. 7 this shows a different ocegnizcd by those evening action donblemosed one-- ikes place a 'i" or rough the above dcscri ed are carried out as stated.

84: a db iral'ile, if not an lit) Fig. 7 illustrates in detail a form of presser ring outside the needle row against which the beard is pressed when the needle is deflected outwardly by the presser wheel. This presser ring 11 is slotted on its under Side to guide the web holders and on its upper side to guide the sinkers. The web holders are also guided by their lower p01. tions moving in slots at the inner edge of the sinker bed, as shown in Fig. 7 the sinkers also being guided in the outer portion of this slotted bed. a

As illustrating the fact that my invention is not limited, and the claims are not intend ed to be interpreted as limited, to the particular organization shown in Figs. 1 to 6 I show in F ig. 8 an organization in which the web holders and sinkers are pivotally mounted. The parts in this figure corresponding substantially in function to those before described in so far as they are designated by reference characters are indicated by characters corresponding to those used hereinbefore with the addition of the exponent a.

The web holders travel in an are shaped path on the top of the bed 14, which is not milled at this upper, surface, but is a turned or machined surface, thus contributing not only to ease of manufacture but also to accuracy. The web holders are guided between presser elements 15 held by this bed which is slotted at 16 across its top and vertically upon its outer side or face at 17 The presser elements consist of pieces 15 shown in detail in Figs. 11, 12 and 13 and Fig. 10 is a plan view showing the upper face of the presser bed or ring 1 1, the parts or surfaces 18 between the slots being the bearing surfaces upon which the lower edges of the web holders rest and slide. The presser elements are of general inverted U-shape having two depending prongs as shown in Fig. 13, the

inner prong 15 fitting down against the,

inner face of the bed 14 while the other prong 15 fits in the outer slot 17 of the bed. The presser elements are removable and are preferably held in place by spring rings 19 though these may be held by friction or in other ways. Any one of the presser elements may be removed for renewal or repair by simply pulling it up from engagement by the spring band. The sinkers 3 have their upper are shaped portions guided between the upper portions of the presser elemefgts and depending lugs 3* of the sinkers which'bperate between the shoulder of the web holders lie and work between these upper ends of the presser elements. The sinkers are also guided by slots in the underside of the cap plate 20 forming a part of the inclosing casing and this cap serves to hold.

the sinkers in their pivot seats 21. The presser elements are slightly rounded at their upper inner corners to receive the needle beards and the inner faces of these elements may be grooved, as shown at 15*.

The presser units may be formed of hardened steel. The noses of the web holders avlrich are thinned are guided in slots of the web ring 22. The cam for operating the sinkers is shown at 23. The s1nkers have arms which are guided inthe slots 24 of a 1. In combination, a needle carrier, needles, a series of individual sinkers and a series of individual web holders, and means for operating one of said series which 1n turn operates the other series, substantially as described.

In combination a needle carrier, needles, individual sinkers and individual web holders, and cam meansfor operating the sinkers, said sinkers operating the web holders, substantially as described.

3.111 combination a needle carrier, needles, sinkers, web holders detachably engaged by the sinkers and means for operating the sinkers, which in turn operate the web holders, substantially as described.

4. In combination, a needle carrier, needles, a set of sinkers, a set of web holders, means for operating the sinkers which in turn impart to the web holders some of the necessary movement and means for giving other movement to said web holders, substantially as described.

5. In combination a needle carrier, needles, a set of sinkers, a set of web holders, a

bed having grooves with a sinker and web holder in each groove of said bed, a cam for operating the sinkers, which in turn operate this web holders and a spring for additionally operating said web holders, sub stantially as described.

(3. In combination a needle carrier, needles, a set of web holders, spring means for operating the web holders toward the needies and cam operated sinkers for operating the web holders in opposition to the spring means, substantially as described.

7. In combination, a needle carrier, needles, a set of web holders, a set of sinkers, means for operating the sinkers, said sets having a lost motion connection, through which the operated sinkers actuate the web BIZST AVAILABLE COPY means for operating the sinkers, said sets .having a lost motion connection, thrdugh which the operated sinkeisactuate the web 'l1olders, and means for additionallyoperat;

ingthe web holders, substantially as described.

' s59. .ln mmbination in a knitting machine, sinkersan-d web holders interlocked and .means'for operating the sinkers which ope their movement in common having relative Zmovement.

ate theweb holders, said parts in addition to 10. Incombination, in a knittingmachine, a needle carrier, sinkers and web holders having shoulders-by which they are, interlocked, whereby one will move the other, and operating means, substantially as described. 11'. In combination in a knitting machine,

. "a' needle'carrier, Web holders, sinkers over- .l ying the web holders in part and having low'portions guided in rear of the web hold- ,ers, and means for operating the sinkers,

which in turn operate the web holders, substantially as described.

12. In combination a needle carrier, web

holders, sinkers' overlying the web holders' and having spaced apart shoulders for en gaging thesame, cam means for operating the sinkjer's, which in turn operate thegweb holdere and spring means engaging theweb holders/for additionally operating them,

substantially as described.

13. In combination, a needle carrier, nee- '-dles, web holders therefor, sinkers having spaced apart shoulders and embracing the tail of the web holders to operate them with lost motion, said sinkers having low portions with means for guiding the same, and a spring band engaging the tail of the web holders for additionally operating them, substantially as described.

14. In combination, pivotally mounted sinkers, means for operating them, and individual .web holders operated by the sinkers, substantially as described.

' 15, In combination, slidable Web holders, and pivoted sinke rs operating the web hold- I ers-and-means for operating the sinkers.

16. In combination movable web holders, and inkers reaching over the web holders and-pivotally-mounted, below the plane of the web holders, said sinkers operating the web, holders and means for operating the sinners, substantially as described.

.. I'LL-III combination, individual web hold- 'ers, piv'oted-sinkersoperating the web holders and; having arms extending outwardly from their'pivots with team means operating the said arms.

18. In combination, individual web holdloops across intents ers, movable in an arc sha ed path, and

pivoted sinners engaging an operating the web holders,with means for operating the.

sinker-s, substantially as described.

19. In combination, individual web holders, movable in an are shaped path, and

pivoted sinkers engaging and operating the .web' holders, with means for operating the sinkers, and a bed having a curved machined surface on which the web holders move, substantiallv as described. 7

20. In combination, ,slidable web holders, a bed therefior, sinkcrs pivoted to said bed below the plane of the web holders and reaching over the web holders and interlocking therewith to operate the web holders, and means for operating the sinkers, substantially as described.' a

21. In combination individual web holders, pivoted sinkers interlocking with the to both the web holders and sinkcrs, and

cam means for operating the sinkers, said sinkers operating the web holders, substantially as described.

24. In combination in a individual web holders operating the sinkers which in turn operate the web holders, additional means for operating the web holders, said web holders in connection with the needles evening the their tops, substantially as delmitting machine,

scribed.

25. In combination, a bed, pressing clements held by said bed, a presser device to deflect the needles outwardly against said presser elements, web holders guided be tween the prcsser elements, and on top of the bed, sinkers closely overlying the web holders, and means engaging the upper surfaces of the sinkers to hold them down to work upon the web holders and means for operating the sinkers, which in turn operate the web holders, substantially as described.

In testimony whereof, I aiiix my signature.

FRANK VVILCQIMB.

sinkers, means for 

